It seems like you might be mixing up a few concepts:
* Nature: This is a Pokemon stat that affects certain stats like Attack, Special Attack, etc. "Naive" is a nature that increases Special Attack but decreases Special Defense.
* Pokemon: These are the creatures you catch and train in the Pokemon games. There is no Pokemon called "Naive Nature".
Here are some possible scenarios:
* You may have seen a Pokemon with a Naive Nature. You can tell what nature a Pokemon has when you look at its summary screen in-game.
* You might be looking for a Pokemon with a specific type that also has the Naive nature. This would require you to find the Pokemon and then check its nature.
* You may have misremembered or misunderstood a specific Pokemon's name.
If you can provide more context, I might be able to give you a more accurate answer. For example, you could tell me:
* What type of Pokemon you are looking for?
* What specific stat you want the Pokemon to have?
* If you remember any other details about the Pokemon or the situation.
Let me know, and I'll do my best to help!